Adjustable fixator for ECMO pipeline

Abstract

The utility model relates to an adjustable fixator for ECMO pipeline, which comprises a fixing seat and a wearing component capable of wearing the fixing seat on the limb of a patient, the fixing seat is provided with a plurality of fixing channels for the pipeline to pass through and a plurality of limiting components in one-to-one correspondence with the fixing channels, each limiting component comprises a limiting part, the limiting parts are positioned in the fixing channels, and the fixing channels are arranged in the fixing channels. The limiting assembly can control the limiting part to move in the fixing channel, and through cooperation of the limiting part and the fixing channel, an adjustable clamping space used for fixing the pipeline is formed. According to the ECMO pipeline fixing device, the fixing channels are formed in the fixing base, different ECMO pipelines are placed in the channels, and the limiting assemblies correspond to the fixing channels in a one-to-one mode; by operating the limiting assembly, the limiting part can be controlled to move in the fixed channel, and the distance between the limiting part and the inner wall of the fixed channel is changed along with the movement of the limiting part, so that a plurality of ECMO pipelines can be fixed at the same time, and the fixation of each ECMO pipeline can be independently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of extracorporeal membrane oxygenation (ECMO) assistive devices, and more specifically, to an adjustable fixator for ECMO tubing. Background Technology

[0002] Extracorporeal membrane oxygenation, or ECMO for short, uses a blood pump to draw blood from the body, oxygenate it and remove carbon dioxide in an oxygenator, and then return the blood to the body after gas exchange. Under the push of the pump, the blood can return to a vein (VV mode) or to an artery (VA mode), thereby partially replacing the patient's cardiopulmonary function and providing extracorporeal respiratory and circulatory support.

[0003] In clinical practice, securing the ECMO tubing is crucial to ensure the continuity and safety of treatment. Currently, the commonly used clinical method for securing ECMO tubing involves using sutures to fix the tubing to the patient's limb, then using hemostatic forceps to wrap sterile gauze around the tubing and clamping it to a bed sheet. However, this method presents challenges in disassembling or adjusting the ECMO tubing after fixation. Furthermore, it is prone to slippage, displacement, and kinking of the tubing, potentially affecting ECMO treatment.

[0004] In view of this, it is indeed necessary to provide a technical solution to the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an adjustable retainer for ECMO tubing, addressing the above-mentioned deficiencies of the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An adjustable fixation device for ECMO tubing is constructed, comprising a fixation base and a wearable component for wearing the fixation base on a patient's limb. The fixation base has multiple fixation channels for tubing to pass through, and limiting components corresponding to each of the multiple fixation channels. Each limiting component includes a limiting part located within the fixation channel. The limiting component can control the movement of the limiting part within the fixation channel. The limiting part cooperates with the fixation channel to form an adjustable clamping space for fixing the tubing.

[0008] As an improvement to the adjustable retainer, the limiting part has a V-shaped groove, and the bottom of the fixing channel has a receiving groove. The limiting component can control the limiting part to move and insert into the receiving groove. The V-shaped groove and the bottom of the fixing channel cooperate to form a triangular clamping space.

[0009] As an improvement to the adjustable retainer, the limiting assembly further includes a connecting rod and an adjusting screw rotatably disposed on the fixed base. The connecting rod is slidably connected to the fixed base, one end of the connecting rod is threadedly connected to the adjusting screw, and the other end is used to install the limiting part.

[0010] As an improvement to the adjustable fastener, several anti-slip strips are provided in both the V-groove and the fixing channel.

[0011] As an improvement to the adjustable fastener, the wearable component includes a winding member disposed on the fastener, the winding member being connected to a fixing strap, the end of the fixing strap engaging with the side of the fixing seat away from the winding member; the tightness of the fixing strap is adjusted by winding and unwinding the winding member.

[0012] As an improvement to the adjustable fastener, the winding component includes a take-up and release frame for mounting the fastener strap. The take-up and release frame is rotatably connected to the fastener, and the take-up and release frame is connected to a driver that drives the take-up and release frame to rotate for take-up and release processing.

[0013] As an improvement to the adjustable fastener, the driver includes a motor that is connected to the take-up and release frame. The fixing base is provided with a first button and a second button that cooperate with the motor. The first button and the second button control the motor to rotate forward and reverse, respectively, so as to tighten and loosen the fixing strap.

[0014] As an improvement to the adjustable fastener, the end of the fastening strap is provided with a retaining shaft, the fastening seat has a fastening groove for inserting the retaining shaft, the outer wall of the retaining shaft is provided with a limiting groove, and the fastening seat is provided with a locking member that can be inserted into the limiting groove to lock the retaining shaft.

[0015] As an improvement to the adjustable retainer, the locking element includes a rotating shaft mounted on the fixing base, a reset element provided between the rotating shaft and the fixing base, a locking block that cooperates with the limiting groove at the inner end of the rotating shaft, and a knob for user rotation control at the outer end of the rotating shaft. By rotating the rotating shaft, the locking block can be inserted into or removed from the limiting groove to lock and unlock the locking shaft.

[0016] As an improvement to the adjustable fixation device, a flexible pad is provided at the bottom of the fixation base, and the fixation base contacts the patient's skin through the flexible pad.

[0017] The beneficial effects of this invention are as follows: This fixator has multiple fixing channels on the fixing base, each channel holding a different ECMO tubing, and multiple limiting components corresponding to each fixing channel. By operating the limiting components, the movement of the limiting part within the fixing channel can be controlled. As the limiting part moves, the distance between it and the inner wall of the fixing channel changes, thereby enabling the simultaneous fixation of multiple ECMO tubing, and the fixation of each ECMO tubing can be adjusted independently. This solves the problem that traditional fixation methods often fail to accommodate the characteristics of different ECMO tubing, resulting in poor fixation effects. Precise fixation based on the actual condition of the ECMO tubing ensures that the ECMO tubing is stably held in the set position, greatly reducing the risks caused by ECMO tubing displacement and ensuring the continuity and safety of ECMO treatment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of the fixator provided by this utility model;

[0020] Figure 2 This is the second three-dimensional structural schematic diagram of the fixator provided by this utility model;

[0021] Figure 3 This is one of the cross-sectional views of the fixator provided by this utility model;

[0022] Figure 4 This is an enlarged view of point A of the fixator provided by this utility model;

[0023] Figure 5 This is the second sectional view of the fixator provided by this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the fixation device wearing assembly provided by this utility model;

[0025] Figure 7 This is the third sectional view of the fixator provided by this utility model.

[0026] In the diagram: 1. Fixed base; 11. Fixed channel; 12. Receiving groove; 13. Fixed groove; 2. Limiting component; 21. Limiting part; 211. V-groove; 22. Adjusting screw; 23. Connecting rod; 3. Wearing component; 31. Fixing strap; 32. Winding part; 321. Retracting frame; 322. Motor; 323. First button; 324. Second button; 33. Locking shaft; 331. Limiting groove; 4. Locking component; 41. Rotating shaft; 42. Reset component; 43. Locking block; 44. Knob. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] like Figure 1 and Figure 2 As shown, an adjustable fixator for ECMO tubing includes a fixation base 1 and a wearable component 3 that allows the fixation base 1 to be worn on the patient's limb. The fixation base 1 has multiple fixation channels 11 for the tubing to pass through, and limiting components 2 corresponding to each of the multiple fixation channels 11. The limiting component 2 includes a limiting part 21 located within the fixation channel 11. The limiting component 2 can control the movement of the limiting part 21 within the fixation channel 11. Through the cooperation of the limiting part 21 and the fixation channel 11, an adjustable clamping space is formed for fixing the tubing. Specifically, in use, the fixation base 1 is first worn on the patient's limb in a suitable position using the wearable component 3. Then, the ECMO tubing is placed within the fixation channel 11. By operating the limiting component 2, the limiting part 21 moves within the fixation channel 11. Because the limiting part 21 and the fixation channel 11 cooperate with each other, an adjustable clamping space is formed. When a thinner ECMO tubing needs to be secured, the limiting part 21 can be pushed closer to the ECMO tubing to reduce the clamping space and thus secure the ECMO tubing tightly. If the ECMO tubing is thicker, the operation is reversed to expand the clamping space to accommodate the ECMO tubing, thereby achieving stable fixation of ECMO tubing of different diameters. Therefore, it effectively solves the problems of easy slippage, displacement, and kinking caused by traditional fixation methods. Through the adjustable clamping space, precise fixation can be performed according to the actual situation of the ECMO tubing, keeping the ECMO tubing firmly in the set position, greatly reducing the risks caused by ECMO tubing displacement, and ensuring the continuity and safety of ECMO treatment.

[0029] Furthermore, the fixator utilizes multiple fixing channels 11 on the fixing base 1, each channel housing a different ECMO tubing, with multiple limiting components 2 corresponding one-to-one with each fixing channel 11. By operating the limiting components 2, the movement of the limiting part 21 within the fixing channel 11 can be controlled. As the limiting part 21 moves, the distance between it and the inner wall of the fixing channel 11 changes, thereby adjusting the clamping force and space for the tubing. In this way, each fixing channel 11 can be precisely adjusted individually according to the diameter, shape, and other characteristics of the tubing placed within it, achieving a tight and suitable fixation. This solves the problem of poor fixation results often caused by traditional fixation methods failing to accommodate the characteristics of different ECMO tubing, enabling the simultaneous fixation of multiple ECMO tubing and allowing for personalized fixation of each ECMO tubing.

[0030] In some embodiments of this application, the limiting part 21 has a V-shaped groove 211, and the bottom of the fixed channel 11 has a receiving groove 12. The limiting component 2 can control the limiting part 21 to move and insert into the receiving groove 12. Through the cooperation between the V-shaped groove 211 and the bottom of the fixed channel 11, a triangular clamping space is formed. Specifically, when it is necessary to fix the ECMO tubing, the limiting component 2 is operated to drive the limiting part 21 to move toward the receiving groove 12 at the bottom of the fixing channel 11. The V-shaped groove 211 on the limiting part 21 gradually approaches and cooperates with the bottom of the fixing channel 11 during the movement. As the limiting part 21 is inserted into the receiving groove 12, the two side walls of the V-shaped groove 211 and the bottom of the fixing channel 11 form a stable triangular clamping space. Due to the stability of the triangular structure, when the ECMO tubing is placed in this clamping space, it will be subjected to uniform forces from three directions, thus being firmly fixed. Compared with the traditional ECMO tubing fixation method, this greatly improves the fixation effect of the ECMO tubing and can effectively prevent the ECMO tubing from slipping, shifting, or kinking during treatment.

[0031] The depth to which the limiting part 21 is inserted into the receiving groove 12 is controlled by the limiting component 2, allowing for flexible adjustment of the size of the triangular clamping space. For thinner ECMO tubing, the limiting part 21 is inserted deeper into the receiving groove 12, resulting in a smaller gap between the V-shaped groove 211 and the bottom of the fixing channel 11, achieving tight clamping. For thicker ECMO tubing, the depth to which the limiting part 21 is inserted into the receiving groove 12 is reduced, widening the gap and ensuring that ECMO tubing of different diameters can be stably fixed, thus improving the versatility of the clamp.

[0032] In some embodiments of this application, such as Figure 3 and Figure 4As shown, the limiting assembly 2 also includes a connecting rod 23 and an adjusting screw 22 rotatably mounted on the fixed base 1. The connecting rod 23 is slidably connected to the fixed base 1, one end of the connecting rod 23 is threadedly connected to the adjusting screw, and the other end is used to install the limiting part 21. Specifically, when it is necessary to adjust the position of the limiting part 21 to fix ECMO tubing of different diameters or adjust the fixing force, rotating the adjusting screw 22 will cause the connecting rod 23 to move along the adjusting screw, since the adjusting screw 22 is rotatably connected to the fixed base 1 and one end of the connecting rod 23 is threadedly connected to the adjusting screw. Because the limiting part 21 is installed at the other end of the connecting rod 23, the sliding of the connecting rod 23 will drive the limiting part 21 to move within the fixed channel 11. By rotating the adjusting screw 22 forward or backward, the limiting part 21 can be precisely controlled to move closer to or further away from the ECMO tubing within the fixed channel 11, thereby adjusting the size of the clamping space formed by the limiting part 21 and the fixed channel 11, and achieving precise fixation of the ECMO tubing. It enables precise control of the position of the limiting part 21, allowing for more accurate adjustment of the clamping space compared to other simple adjustment methods. Medical staff can finely adjust the position of the limiting part 21 according to the actual diameter of the ECMO tubing, ensuring that the ECMO tubing is securely and properly fixed. This meets the fixation requirements of ECMO tubing of different diameters, effectively preventing problems such as slippage, displacement, and kinking of the ECMO tubing due to insecure fixation, and ensuring the safety and continuity of ECMO treatment.

[0033] In some embodiments of this application, a plurality of anti-slip strips are provided in both the V-groove 211 and the fixing channel 11. Specifically, when the ECMO tubing is placed in the V-groove 211 and the fixing channel 11 with anti-slip strips, the anti-slip strips increase the roughness of the contact surface between the ECMO tubing and the fixing device, thereby increasing the friction between them. Even if the patient moves, or the ECMO tubing is pulled or shaken by external forces, the ECMO tubing is unlikely to slide within the fixing channel 11 and the V-groove 211, thus achieving a more stable fixation effect and effectively preventing the ECMO tubing from sliding or shifting during the fixation process.

[0034] In some embodiments of this application, the wearable component 3 includes a winding member 32 disposed on the fixator. The winding member 32 is connected to a fixing strap 31, and the end of the fixing strap 31 is engaged with the side of the fixation seat 1 away from the winding member 32. The tightness of the fixing strap 31 is adjusted by winding and unwinding the winding member 32. Specifically, when using the fixator, the fixation seat 1 is first placed on the part of the patient's limb where the ECMO tubing needs to be fixed. The fixing strap 31 is released from the winding member 32 by operating the winding member 32. The fixing strap 31 is then wrapped around the patient's limb and engaged with the other side of the fixation seat 1. Finally, the fixing strap 31 is wound around the winding member 32 by rotating the winding member 32. The fixing strap 31 gradually shortens, thereby applying a certain pressure to the patient's limb and fixing the fixator to the limb. If the fixation is too tight, the winding member 32 is rotated in the opposite direction to release the fixing strap 31 and reduce the pressure on the limb.

[0035] In addition, since the end of the fixing strap 31 is snapped to the fixing seat 1, in case of an emergency and when it is necessary to quickly remove the fixator, it is only necessary to release the snapping engagement between the end of the fixing strap 31 and the fixing seat 1; thus improving the convenience of putting on and taking off the fixator.

[0036] In some embodiments of this application, such as Figure 5 As shown, the winding component 32 includes a take-up and unwind frame 321 for mounting the fixing belt 31. The take-up and unwind frame 321 is rotatably connected to the fixture. The take-up and unwind frame 321 is connected to a driver, which drives the take-up and unwind frame 321 to rotate for take-up and unwinding. Specifically, the driver acts as a power source, generating power output when the driver is activated. Since the take-up and unwind frame 321 is connected to the driver, the power of the driver is transmitted to the take-up and unwind frame 321, causing the take-up and unwind frame 321 to rotate around the connection point with the fixture. The fixing belt 31 is mounted on the take-up and unwind frame 321. As the take-up and unwind frame 321 rotates, the fixing belt 31 will be wound up or unwound according to the rotation direction of the take-up and unwind frame 321. When the actuator rotates forward, the retraction frame 321 rotates forward as well, and the fixing strap 31 gradually wraps around the retraction frame 321, shortening its length and thus tightening and securing it to the patient's limb. When the actuator rotates in reverse, the retraction frame 321 rotates in the opposite direction, releasing the fixing strap 31 from the retraction frame 321, increasing its length and thus loosening it. By controlling the direction and duration of the actuator's rotation, the rotation angle of the retraction frame 321 can be precisely controlled, thereby accurately adjusting the length of the fixing strap 31. Compared to manually winding the fixing strap 31 directly, driving the retraction frame 321 with the actuator is easier and less strenuous.

[0037] In some embodiments of this application, the driver includes a motor 322, which is connected to the take-up and release frame 321. The fixed base 1 is provided with a first button 323 and a second button 324 that cooperate with the motor 322. The first button 323 and the second button 324 control the motor 322 to rotate forward and reverse, respectively, so as to tighten and loosen the fixed belt 31.

[0038] In some embodiments of this application, such as Figure 6 and Figure 7 As shown, the end of the fixing strap 31 is provided with a retaining pin 33, and the fixing base 1 has a fixing groove 13 for the retaining pin 33 to be inserted. The outer wall of the retaining pin 33 is provided with a limiting groove 331, and the fixing base 1 is provided with a locking member 4. The locking member 4 can be inserted into the limiting groove 331 to lock the retaining pin 33. Specifically, when the first button 323 is pressed, the circuit is turned on, and the current flows to the motor 322. After receiving the electrical signal, the motor 322 starts to rotate forward. Since the motor 322 is connected to the take-up and release frame 321, the forward rotation of the motor 322 drives the take-up and release frame 321 to rotate forward synchronously. The fixing strap 31 on the take-up and release frame 321 is wound around accordingly, and the fixing strap 31 gradually shortens, thereby increasing the pressure applied to the patient's limb by the fixator, realizing the tightening of the fixing strap 31, and fixing the fixator more tightly to the patient's limb. When the second button 324 is pressed, the motor 322 receives a different electrical signal and begins to reverse, causing the retraction frame 321 to reverse as well. The fixation strap 31 is then released from the retraction frame 321, increasing its length and reducing the pressure of the fixation device on the patient's limb, thus completing the release of the fixation strap 31. This simple button control method allows medical staff to easily adjust the tightness of the fixation strap 31. Medical staff do not need to perform complex manual operations; tightening and loosening the fixation strap 31 can be achieved simply by pressing two buttons, greatly improving operational efficiency. In emergencies, the fixation strap 31 can be quickly released, allowing the fixation device to be removed from the patient's limb.

[0039] In some embodiments of this application, the locking member 4 includes a rotating shaft 41 installed on the fixed base 1, a reset member 42 is provided between the rotating shaft 41 and the fixed base 1, a locking block 43 that cooperates with the limiting groove 331 is provided at the inner end of the rotating shaft 41, and a knob 44 for the user to rotate and operate is provided at the outer end of the rotating shaft 41. By rotating the rotating shaft 41, the locking block 43 can be inserted into or removed from the limiting groove 331 to lock and unlock the locking shaft 33. Specifically, the reset element 42 is a torsion spring. When it is necessary to fix the retaining pin 33 at the end of the fixing belt 31, the user rotates the knob 44 at the outer end of the rotating shaft 41 to make the rotating shaft 41 rotate. As the rotating shaft 41 rotates, the retaining block 43 installed at the inner end of the rotating shaft 41 rotates accordingly. The retaining block 43 rotates until it moves out of the fixing groove 13, and the reset element 42 is squeezed and deformed. Then the retaining pin 33 is inserted into the fixing groove 13, and the limiting groove 331 on the retaining groove is aligned with the retaining block 43. Then the knob 44 is released. Under the action of the elastic force of the reset element 42, the rotating shaft 41 rotates to reset, driving the retaining block 43 to reset and automatically insert into the limiting groove 331. At this time, the retaining pin 33 is locked, and the fixing belt 31 cannot slide freely, thus ensuring the stability of the fixing belt 31 after the tension is adjusted. When it is necessary to unlock, turn the knob 44 again to make the locking block 43 rotate out of the limiting groove 331, and the locking shaft 33 will be unlocked. At this time, the fixing strap 31 can be adjusted or disassembled, and then the fixation device can be removed from the patient's limb.

[0040] In some embodiments of this application, a flexible pad is provided at the bottom of the fixation device 1, and the fixation device 1 contacts the patient's skin through the flexible pad. Specifically, the flexible pad is made of silicone or soft rubber, etc. When the fixation device 1 is placed on the patient's skin, the flexible pad can conform to the unevenness of the patient's skin surface and fill the gap between the fixation device 1 and the skin. Due to its soft texture, when the fixation device 1 is subjected to external forces (such as patient movement, ECMO tubing pulling, etc.), the flexible pad will deform to a certain extent, dispersing pressure and preventing pressure from concentrating on a certain point or area of ​​the skin. At the same time, the flexible material can also buffer the friction between the fixation device 1 and the skin, reducing damage to the skin caused by friction. This avoids the fixation device 1 directly pressing on the skin, reducing discomfort such as indentations and pain. When the patient uses the fixation device for a long time, the skin can remain in a relatively comfortable state, improving the patient's experience during the treatment process.

[0041] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An adjustable holder for an ECMO tubing, characterized in that, The device includes a fixation base and a wearable assembly that allows the fixation base to be worn on a patient's limb. The fixation base has multiple fixed channels for tubing to pass through, and limiting components corresponding to each of the multiple fixed channels. Each limiting component includes a limiting part located within the fixed channel. The limiting component can control the movement of the limiting part within the fixed channel. The limiting part cooperates with the fixed channel to form an adjustable clamping space for fixing the tubing. The limiting part has a V-shaped groove, and the bottom of the fixed channel has a receiving groove. The limiting component can control the movement of the limiting part to insert into the receiving groove. The cooperation between the V-shaped groove and the bottom of the fixed channel forms a triangular clamping space. The limiting component also includes a connecting rod and an adjusting screw rotatably disposed on the fixation base. The connecting rod is slidably connected to the fixation base. One end of the connecting rod is threadedly connected to the adjusting screw, and the other end is used to install the limiting part.

2. The adjustable holder for an ECMO circuit according to claim 1, characterized in that Both the V-shaped groove and the fixed channel are provided with several anti-slip strips.

3. The adjustable anchor of claim 1, wherein, The wearable component includes a winding member disposed on the fastener, the winding member being connected to a fixing strap, the end of the fixing strap engaging with the side of the fixing seat away from the winding member; the tightness of the fixing strap is adjusted by winding and unwinding the winding member.

4. The adjustable holder for an ECMO circuit according to claim 3, characterized in that The winding component includes a take-up and release frame for mounting the fixing strap. The take-up and release frame is rotatably connected to the fixing device. The take-up and release frame is connected to a driver, which drives the take-up and release frame to rotate for take-up and release processing.

5. The adjustable retainer for ECMO tubing according to claim 4, characterized in that, The driver includes a motor, which is connected to the take-up and release frame. The fixed base is provided with a first button and a second button that cooperate with the motor. The first button and the second button control the motor to rotate forward and reverse, respectively, so as to tighten and loosen the fixing belt.

6. The adjustable holder for an ECMO circuit according to claim 3, characterized in that The fixing belt has a retaining pin at its end, the fixing seat has a fixing groove for inserting the retaining pin, the outer wall of the retaining pin has a limiting groove, and the fixing seat has a locking member that can be inserted into the limiting groove to lock the retaining pin.

7. The adjustable holder for an ECMO circuit according to claim 6, characterized in that The locking component includes a rotating shaft installed on the fixed base, a reset component is provided between the rotating shaft and the fixed base, a locking block that cooperates with the limiting groove is provided at the inner end of the rotating shaft, and a knob for the user to rotate and operate is provided at the outer end of the rotating shaft. By rotating the rotating shaft, the locking block can be inserted into or removed from the limiting groove to lock and unlock the locking shaft.

8. The adjustable holder for an ECMO circuit according to claim 1, characterized in that The bottom of the fixation seat is provided with a flexible pad, and the fixation seat contacts the patient's skin through the flexible pad.

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